Update README.md

Signed-off-by: Ruslan Senatorov <[email protected]>

Author: ruslansenatorov

README.md

@@ -3,3 +3,4 @@
 - Улучшены [ишьюс ревью](https://github.com/SENATOROVAI/intro/issues/5), [обновлены пункты 5.5-5.6](https://github.com/SENATOROVAI/intro/issues/12), спасибо [lessWronger](https://github.com/lessWronger) 
 - Синхронизирован линтер pre-commit,  [пул реквест](https://github.com/SENATOROVAI/Data-Science-For-Beginners-from-scratch-SENATOROV/pull/474), спасибо [rizespbya](https://github.com/rizespbya)
 - Улучшен [интро](https://github.com/SENATOROVAI/intro/issues/10), спасибо [savemysoul382](https://github.com/savemysoul382)
+- [Тестирование функционала](https://github.com/SENATOROVAI/intro/issues/11), спасибо [smrnvdn](https://github.com/smrnvdn)